cve/2021/CVE-2021-20140.md

### [CVE-2021-20140](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20140)
![](https://img.shields.io/static/v1?label=Product&message=Gryphon%20Tower%20router&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Command%20Injection&color=brighgreen)

### Description

An unauthenticated command injection vulnerability exists in the parameters of operation 10 in the controller_server service on Gryphon Tower routers. An unauthenticated remote attacker on the same network can execute commands as root on the device by sending a specially crafted malicious packet to the controller_server service on port 9999.

### POC

#### Reference
- https://www.tenable.com/security/research/tra-2021-51

#### Github
No PoCs found on GitHub currently.